en.Wedoany.com Reported - Kyoto University has achieved high-speed, large-capacity transmission for vehicular communications using the sub-terahertz frequency band.

On June 26, 2026, Kyoto University announced that a research team led by Professor Hiroshi Harada and Associate Professor Yusuke Koda of the Graduate School of Informatics successfully achieved high-speed, large-capacity transmission for a vehicular communication system using the sub-terahertz band (100 GHz band). The research team conducted verification tests on a vehicle line extending approximately 300 meters at an intersection, targeting actual moving vehicles. While adhering to 5G standardized communication specifications, they utilized a bandwidth of 920 MHz (more than double the maximum channel bandwidth of 400 MHz allocated for 5G in Japan) to achieve a high-speed wireless transmission rate of 1.7 Gbps. This is reportedly the world's first instance of high-speed, large-capacity transmission using sub-terahertz band radio waves in a communication method compliant with 5G standardization specifications while transmitting data to actual moving vehicles. In the specific experiment, the team transmitted signals to vehicles traveling at speeds of 20 to 30 km/h along a 330-meter straight vehicle line, achieving a maximum communication distance of 320 meters.

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